CN223255842U - A mounted arch bridge main arch ring maintenance operation platform - Google Patents
A mounted arch bridge main arch ring maintenance operation platformInfo
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- CN223255842U CN223255842U CN202422602053.2U CN202422602053U CN223255842U CN 223255842 U CN223255842 U CN 223255842U CN 202422602053 U CN202422602053 U CN 202422602053U CN 223255842 U CN223255842 U CN 223255842U
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- main arch
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Abstract
本实用新型涉及一种挂载式拱桥主拱圈养护作业平台，包括行走系统、悬挂系统、平台系统和平台升降系统；行走系统在主拱圈两侧顶面分别设置一行走小车并可沿设置在主拱圈上的轨道行走，悬挂系统通过悬臂梁悬挂在两行走小车上，平台系统的两侧平台分别位于主拱圈两侧，下平台位于主拱圈下方，升降系统的卷扬机设置在悬挂系统上，并通过牵引绳连接侧平台和下平台。本实用新型直接悬挂在主拱圈上并沿主拱圈行走，可避免影响桥面交通，施工人员在平台上，可对主拱圈进行全方位养护作业。
The utility model relates to a mounted arch bridge main arch ring maintenance work platform, comprising a travel system, a suspension system, a platform system, and a platform lifting system. The travel system is provided with a travel trolley on each side of the main arch ring top surface, which can travel along a track provided on the main arch ring. The suspension system is suspended from the two travel trolleys via cantilever beams. The side platforms of the platform system are located on either side of the main arch ring, with the lower platform located below the main arch ring. The hoist of the lifting system is installed on the suspension system, and a traction rope connects the side platforms and the lower platform. The utility model is directly suspended from the main arch ring and travels along the main arch ring, which can avoid affecting bridge traffic. Construction workers on the platform can perform all-round maintenance work on the main arch ring.
Description
Technical Field
The utility model belongs to the technical field of bridge maintenance and construction, and relates to a maintenance operation platform for a main arch ring of a mounted arch bridge.
Background
The main arch ring of the concrete arch bridge is poured by reinforced concrete, and along with the increase of the operation life of the bridge, the main arch ring concrete has the defects of cracks, carbonization, surface corrosion and the like, and needs to be maintained and repaired regularly. The conventional maintenance method is that a maintenance vehicle is adopted to hang a hanging basket on a bridge through a cantilever, the hanging basket is lowered to the outer side of the bridge, constructors construct the hanging basket, but the hanging basket is easy to shake in the air, so that a large construction risk exists, the operators cannot maintain the bottom surface of an arch ring, in addition, the maintenance vehicle is huge in size, and the normal passing of vehicles on the bridge can be influenced when the maintenance vehicle walks on the bridge surface.
Disclosure of Invention
The utility model aims to solve the problems and provides a maintenance work platform for a main arch ring of a mounted arch bridge, which can carry out omnibearing maintenance on the main arch ring, ensure the safety of constructors and avoid influencing traffic on the bridge.
The technical scheme of the utility model is as follows:
The maintenance operation platform for the main arch ring of the mounted arch bridge is characterized by comprising a traveling system, a suspension system, a platform system and a platform lifting system;
The travelling system comprises two rails and two travelling trolleys, wherein the two rails are respectively arranged at the tops of two sides of the main arch ring along the longitudinal direction of the main arch ring, the rails are zigzag, the top surface of each rail is provided with clamping teeth at equal intervals along the longitudinal direction of the rail, the bottom of each rail is welded with an embedded part at the top of the main arch ring;
The suspension system comprises 4 cantilever beams and 4 suspenders, wherein the 4 cantilever beams are respectively welded in a transverse bridge manner at the top of a frame of each traveling trolley, a certain distance is reserved between the two cantilever beams on each traveling trolley, one end of each cantilever beam extends to the outer side of a main arch ring for a certain length to form an outer cantilever, the other end of each cantilever beam extends to the inner side of the main arch ring for a certain length to form an inner cantilever;
The platform system comprises two side platforms and a lower platform, wherein the two side platforms are respectively positioned at two sides of the main arch ring, each side platform is positioned between two suspenders, and the lower platform is positioned between 4 suspenders below the main arch ring;
the platform lifting system comprises 4 winches, wherein the 4 winches are respectively arranged on two connecting beams on two suspenders on two sides of the main arch ring, one winch is respectively arranged on two sides of the main arch ring and connected with a side platform below the main arch ring through a traction rope, and the other two winches on two sides of the main arch ring are respectively connected with two ends of the lower platform through traction ropes.
The utility model has the following advantages:
1. The bridge floor traffic can be prevented from being influenced by directly hanging on the main arch ring and walking along the main arch ring;
2. The side platform and the bottom platform are arranged, and constructors can carry out omnibearing maintenance operation on the main arch ring on the platform;
3. The structure is stable, the safety is good, and the safety of constructors can be ensured.
Drawings
FIG. 1 is a transverse bridge elevational view of the present utility model;
FIG. 2 is a forward side view of the present utility model;
FIG. 3 is an enlarged view of the portion A of FIG. 1, mainly showing the elevation structure of the running system and the counter-pulling system;
FIG. 4 is an enlarged view at B of FIG. 2, mainly showing a side view configuration of the running gear;
FIG. 5 is a side elevational block diagram of the reverse pull system;
FIG. 6 is a cross-bridge elevational view of the side platform;
FIG. 7 is a forward bridge side view of the side platform;
FIG. 8 is a cross-bridge elevational view of the lower platform;
fig. 9 is a forward side view of the lower platform.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the utility model comprises a walking system, a suspension system, a platform system and a platform lifting system;
The traveling system comprises two rails 1 and two traveling trolleys, wherein the two rails 1 are respectively longitudinally arranged at the tops of two sides of a main arch ring along the main arch ring 22, the rails 1 are zigzag, the top surface of each rail is longitudinally and equidistantly provided with clamping teeth along the rails, the bottom of each rail 1 is welded with an embedded part 21 at the top of the main arch ring 22, each traveling trolley comprises a frame 2, a traveling wheel 3 is arranged at the bottom of the frame, the traveling wheels 3 are of a gear structure, a traveling wheel driving motor 4 is arranged in the middle of the top of the frame, a driving wheel is arranged on a transmission shaft of the traveling wheel driving motor 4, the driving wheel is connected with a rotating shaft of the traveling wheel through a chain 5 or a transmission belt, the traveling wheels 3 of the two traveling trolleys are respectively supported on the two rails 1, and the gears of the traveling wheels 3 are meshed with the clamping teeth on the rails 1 and can travel along the rails;
The suspension system comprises 4 cantilever beams 6 and 4 suspenders 7;4, wherein two cantilever beams 6 are respectively welded on the tops of the frames 2 of two travelling trolleys in a transverse bridge manner, a certain distance is reserved between the two cantilever beams 6 on each travelling trolley, one end of each cantilever beam 6 extends to the outer side of a main arch ring 22 for a certain length to form an outer cantilever, the other end extends to the inner side of the main arch ring for a certain length to form an inner cantilever, two suspenders 7 are respectively arranged on two sides of the main arch ring, the upper ends of the two suspenders 7 on each side of the main arch ring are respectively welded with the outer cantilever arms of the two cantilever beams 6, the lower ends of the 4 suspenders 7 extend to the lower side of the main arch ring 22 for a certain length, an upper connecting beam 8 is welded between the upper ends of the two suspenders 7 on each side of the main arch ring, and a lower connecting beam 9 is welded between each two transverse bridges on two sides of the main arch ring to the lower ends of the opposite suspenders 7;
the platform system comprises two side platforms 10 and a lower platform 11, wherein the two side platforms 10 are respectively positioned at two sides of a main arch ring 22, and each side platform 10 is positioned between two suspenders 7;
The platform lifting system comprises 4 winches 12, wherein two winches 12 are respectively arranged on the upper connecting beams 8 of two suspenders at two sides of a main arch ring, one winch 12 at two sides of the main arch ring is respectively connected with a side platform 10 below the main arch ring through a traction rope 13, and the other two winches 12 at two sides of the main arch ring are respectively connected with two ends of the lower platform 11 through traction ropes 13.
According to the structure, the winch 12 is used for lifting the traction side platform 10 and the lower platform 11 through the winding and unwinding of the traction rope 13, constructors can carry out all-round maintenance on the two sides and the bottom of the main arch ring on the platform, the travelling wheel driving motor 4 can drive the travelling wheel 3 to travel along the track 1, the carrying platform longitudinally moves along the main arch ring, and after maintenance construction is completed, the carrying platform moves to the next construction position. The top surface of the main arch ring is arched, and the track 1 and the travelling wheels 3 are matched through gears, so that the travelling wheels can be prevented from sliding down when the travelling wheel driving motor is powered off.
In order to prevent the suspension system from tilting or the travelling wheels from derailing due to unbalanced loading of the platform, the utility model is also provided with a counter-pulling system when the utility model is embodied. As shown in fig. 5, 3 and 1, the counter-pulling system includes two counter-pulling slide rails 14, two counter-force beams 15 and two counter-pulling rods 16, the two counter-pulling slide rails 14 are respectively longitudinally disposed at two sides of the main arch ring 22 along the main arch ring and below the inner cantilever ends of the cantilever beams 6, the bottom of each counter-pulling slide rail 14 is welded with an embedded part 21 at the top of the main arch ring, a C-shaped chute 141 is longitudinally disposed at the top of each counter-pulling slide rail, the two counter-force beams 15 are respectively welded between the inner cantilever ends of the two cantilever beams 6 at each side of the main arch ring, the upper ends of the two counter-pulling rods 16 are respectively welded with the middle of the two counter-force beams 15, the lower ends of the two counter-pulling rods 16 are respectively provided with counter-pressure rollers 17, and the counter-pressure rollers 17 at the lower ends of the two counter-pulling rods are respectively clamped in the chute 141 of the two counter-pulling slide rails 14 and can slide along the chute.
With the structure, the counter-pressure roller 17 of the counter-pulling system is limited in the chute 141 of the counter-pulling slide rail, so that downward counter-pulling force is provided for the short cantilever end of the cantilever beam 6, and the load force born by the long cantilever end of the cantilever beam can be resisted, so that the suspension system is balanced, and the inclination caused by unbalanced load is avoided.
In the implementation of the present utility model, in order to enhance the connection strength between the two suspenders at each side of the main arch ring, a scissor 18 is welded between the upper ends and the lower ends of the two suspenders 7 at each side of the main arch ring.
As shown in fig. 6 and 7, each side platform 10 includes two side platform upper beams 101 and two side platform lower beams 102, the two side platform upper beams 101 and the side platform lower beams 102 are arranged between the two hanging rods 7 in a bridging direction, two ends of each side platform upper beam 101 are respectively welded with two ends of one side platform lower beam 102 with support rods 103, two side platform limit rods 104 are respectively welded at two hanging rods along the bridging direction at the bottom of the two side platform upper beams and the bottom of the two side platform lower beams, the length of each side platform limit rod 104 is greater than the distance between the two hanging rods 7, a plurality of side platform distribution beams 105 are welded between the two side platform upper beams 101, side platform panels 106 are laid on the side platform distribution beams, and side platform guardrails 107 are welded around the side platform panels.
In the above structure, the two suspenders 7 can limit the side platform 10 to sway or incline along the bridge, and the limit rod 104 can limit the side platform 10 to sway or incline along the bridge, so that the side platform keeps balance in the air, and the suspenders play a guiding role when the side platform is lifted up and down.
As shown in fig. 6, in the implementation of the present utility model, the length of the upper cross member 101 of the side platform may be set to be greater than the length of the lower cross member 102 of the side platform. Thus, the area of the side platform can be enlarged, and the volume and weight of the side platform can be reduced.
To further strengthen the structural strength of the side platform, diagonal braces 108 may be welded between the two support bars at each end of the side platform upper and lower beams.
As shown in fig. 8 and 9, the lower platform 11 includes 4 lower platform spandrel girders 111 arranged in a transverse direction, two lower platform spandrel girders 111 are respectively arranged at two sides of each two transverse direction opposite suspenders 7, two ends of each 4 lower platform spandrel girders 111 are respectively welded with a lower platform limiting rod 112,4 between the top surfaces of the lower platform spandrel girders 111 at two sides of each side of the main arch ring, a plurality of lower platform distributing girders 113 are erected between the top surfaces of the lower platform spandrel girders 111, lower platform panels 114 are paved on the lower platform distributing girders 113, and lower platform guardrails 115 are welded around the lower platform panels 114.
In the implementation of the utility model, the connection and traction modes of the windlass of the platform lifting system and the side platform and the lower platform can be realized in such a way that as shown in fig. 2 and 4, an anchor beam 19 is respectively welded on the two boom connecting beams 8 at two sides of the main arch ring and close to the inner side of one boom 7 along the bridge direction, the windlass 12 is arranged on the connecting beam and close to the inner side of the other boom, as shown in fig. 1, 2 and 6 to 9, one side platform joist 109 is welded along the bridge direction between the middle bottom surfaces of the lower cross beams 102 of the two side platforms 10, two ends of the side platform joist 109 are respectively provided with a steering wheel 20, the traction ropes 13 of the windlass connected with the side platform bypass the steering wheels 20 at two ends of the side platform joist and then are connected with the anchor beam 19 above, the bottom surfaces of the two ends of the lower platform joist 11 are respectively welded along the bridge direction, two ends of each lower platform joist 116 are respectively provided with steering wheels 20, and the traction ropes 13 connected with the anchor beam 19 above.
Claims (8)
1. The maintenance operation platform for the main arch ring of the mounted arch bridge is characterized by comprising a traveling system, a suspension system, a platform system and a platform lifting system;
The travelling system comprises two rails and two travelling trolleys, wherein the two rails are respectively arranged at the tops of two sides of the main arch ring along the longitudinal direction of the main arch ring, the rails are zigzag, the top surface of each rail is provided with clamping teeth at equal intervals along the longitudinal direction of the rail, the bottom of each rail is welded with an embedded part at the top of the main arch ring;
The suspension system comprises 4 cantilever beams and 4 suspenders, wherein the 4 cantilever beams are respectively welded in a transverse bridge manner at the top of a frame of each traveling trolley, a certain distance is reserved between the two cantilever beams on each traveling trolley, one end of each cantilever beam extends to the outer side of a main arch ring for a certain length to form an outer cantilever, the other end of each cantilever beam extends to the inner side of the main arch ring for a certain length to form an inner cantilever;
The platform system comprises two side platforms and a lower platform, wherein the two side platforms are respectively positioned at two sides of the main arch ring, each side platform is positioned between two suspenders, and the lower platform is positioned between 4 suspenders below the main arch ring;
the platform lifting system comprises 4 winches, wherein the 4 winches are respectively arranged on two connecting beams on two suspenders on two sides of the main arch ring, one winch is respectively arranged on two sides of the main arch ring and connected with a side platform below the main arch ring through a traction rope, and the other two winches on two sides of the main arch ring are respectively connected with two ends of the lower platform through traction ropes.
2. The maintenance platform of the main arch ring of the mounted arch bridge of claim 1, further comprising a counter-pulling system, wherein the counter-pulling system comprises two counter-pulling sliding rails, two counter-force beams and two counter-pulling rods, the two counter-pulling sliding rails are respectively arranged at the tops of two sides of the main arch ring and below the inner cantilever ends of the cantilever beams along the longitudinal direction of the main arch ring, the bottom of each counter-pulling sliding rail is welded with an embedded part at the top of the main arch ring, a C-shaped sliding groove is longitudinally arranged at the top of each counter-pulling sliding rail, the two counter-force beams are respectively welded between the inner cantilever ends of the two cantilever beams at each side of the main arch ring, the upper ends of the two counter-pulling rods are respectively welded with the middle parts of the two counter-force beams, counter-pulling rollers at the lower ends of the two counter-force beams are respectively clamped in the sliding grooves of the two counter-pulling sliding rails and can slide along the sliding grooves.
3. A maintenance platform for a main arch ring of a mounted arch bridge according to claim 1 or 2, wherein a scissor brace is welded between the upper end and the lower end of each boom on each side of the main arch ring.
4. The maintenance work platform for the main arch ring of the mounted arch bridge according to claim 1 or 2, wherein each side platform comprises two side platform upper cross beams and two side platform lower cross beams, the side platform upper cross beams and the side platform lower cross beams are transversely arranged between two hanging rods, two ends of each side platform upper cross beam are respectively welded with two ends of one side platform lower cross beam, two side platform limit rods are respectively welded at the bottoms of the two side platform upper cross beams and the bottoms of the two side platform lower cross beams at the bottoms of the two hanging rods along the bridge, the length of each side platform limit rod is larger than the distance between the two hanging rods, a plurality of side platform distribution beams are welded between the two side platform upper cross beams, side platform panels are paved on the side platform distribution beams, and side platform guardrails are welded around the side platform panels.
5. A mounted arch bridge main arch ring maintenance work platform according to claim 4, wherein the length of the upper cross beam of the side platform is greater than that of the lower cross beam of the side platform.
6. A maintenance platform for a main arch ring of a mounted arch bridge as recited in claim 4, wherein diagonal braces are welded between the two support bars at each end of the upper cross beam of the side platform and the lower cross beam of the side platform.
7. The maintenance work platform for the main arch ring of the mounted arch bridge according to claim 1 or 2, wherein the lower platform comprises 4 lower platform spanners arranged in the transverse direction, two lower platform spanners are respectively arranged on two sides of each two transverse girders of the lower platform spanners, two lower platform limiting rods are respectively welded on two sides of each side of the main arch ring of the two lower platform spanners at two ends of each of the 4 lower platform spanners, a plurality of lower platform distribution beams are arranged between the top surfaces of the 4 lower platform spanners, lower platform panels are paved on the lower platform distribution beams, and lower platform guardrails are welded around the lower platform panels.
8. A maintenance operation platform for a main arch ring of a mounted arch bridge is characterized in that two boom connecting beams on two sides of the main arch ring are respectively welded with an anchor beam along the bridge direction, a side platform joist is welded between the middle bottom surfaces of lower cross beams of two side platforms of each side platform along the bridge direction, steering wheels are respectively arranged at two ends of the side platform joist, a traction rope of a winch connected with the side platform bypasses the steering wheels at two ends of the side platform joist and then is connected with the anchor beam above, the bottom surfaces of two ends of the lower platform are respectively welded with a lower platform joist along the bridge direction, steering wheels are respectively arranged at two ends of each lower platform joist, and the traction ropes of two winches connected with the lower platform bypass the steering wheels at two ends of the two lower platform joists respectively and are connected with the anchor beam above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422602053.2U CN223255842U (en) | 2024-10-27 | 2024-10-27 | A mounted arch bridge main arch ring maintenance operation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422602053.2U CN223255842U (en) | 2024-10-27 | 2024-10-27 | A mounted arch bridge main arch ring maintenance operation platform |
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| CN223255842U true CN223255842U (en) | 2025-08-22 |
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| CN202422602053.2U Active CN223255842U (en) | 2024-10-27 | 2024-10-27 | A mounted arch bridge main arch ring maintenance operation platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119177607A (en) * | 2024-10-27 | 2024-12-24 | 中交路桥建设有限公司 | Mounting type arch bridge main arch ring maintenance operation platform |
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- 2024-10-27 CN CN202422602053.2U patent/CN223255842U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119177607A (en) * | 2024-10-27 | 2024-12-24 | 中交路桥建设有限公司 | Mounting type arch bridge main arch ring maintenance operation platform |
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